Renormalization of the dephasing by zero point fluctuations

Renormalization of the dephasing by zero point fluctuations
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通过零点波动对移相进行重正化

DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
D. Cohen
D. Cohen
中科院分区:
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文献类型:
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作者:
S. Bandopadhyay;D. Cohen

文献摘要

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我们研究了零点涨落(ZPF)在低温失相中的作用。与Caldeirachar 21 {}Leggett模型不同,其中的相互作用是与均匀的波动力场,在这里,我们考虑了局域浴模式的短程散射的影响。我们发现,在存在ZPF,非弹性截面得到重整化。因此,ZPF可能间接有助于低温下的退相。
We study the role of zero point fluctuations (ZPF) in dephasing at low temperatures. Unlike the Caldeirachar21{}Leggett model, wherein the interaction is with a homogeneous fluctuating field of force, here we consider the effect of short range scattering by localized bath modes. We find that in the presence of ZPF, the inelastic cross section gets renormalized. Thus, ZPF might indirectly contribute to the dephasing at low temperatures.